Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- If the following is a circular array based queue of size 99 43 54 76 93 77 18 If rear is at index 1 and front is at index 6, what is the size of the queue? Answer:arrow_forwardI have implemented a stack using arrays. The array is 5 elements long and is called examstack. The contents are: examstack[0] = 36 examstack[1] = 49 examstack[2] = 7 examstack[3] = 67 examstack[4] = 9 If I did a Pop what would be returned? 9 or 36 09 07 O 67 O 9 or 67 36 or 49 O 36 49arrow_forwardThe program inserts a number of values into a priority queue and then removes them. The priority queue treats a larger unsigned integer as a higher priority than a smaller value. The priority queue object keeps a count of the basic operations performed during its lifetime to date, and that count is available via an accessor. In one or two places I have put statements such as op_count++;, but these are incomplete. We only count operations involved in inserting and removing elements, not auxiliary operations such as is_empty() or size() The class implements a priority queue with an unsorted vector. Your assignment is to re-implement the priority queue implementation using a heap built on a vector, exactly as we discussed in class. Leave the framework and public method interfaces completely unchanged. My original test program must work with your new class. You will have to write new private methods bubble_up and percolate_down. You should not implement heapify or heapsort. #include…arrow_forward
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